Where is the colour management option?
You can find 'Color Management' in the 'Scene' tab of the 'Properties' area (the tall column on the right with the icons at the top).
You are currently on the 'Modifiers' tab (highlighted in orange, which is displaying the 'Displace' modifier), you need to click on the 'Scene' icon (highlighted in red):

In the 'Scene' tab is where the 'Color Management' options reside.